Laundry listing machine



March 1954 w. J. KEUPER 2,671,396

LAUNDRY LISTING MACHINE Original Filed June 17, 1946 6 Sheets-Sheet l hm I i Iii N5 um f\ in g I g I si 5 i a 5'] CE i a 5U U i E I l w (gfi E m l Mr E 5P 3 JQ w e I go INVEN R WILLIAM J.K ER

HIS TTORNEY March 9, 1954 I w. J. KEUPER 2,671,396

LAUNDRY LISTING MACHINE Original Filed June 1'7, 1946 6 Sheets-Sheet 2 1 INVENTOR. WILLIAM J. KEUPER HI JATTORNEY March 9, 1 954 w. J. KEUPER 2,671,396

LAUNDRY LISTING MACHINE TORNEY /7y 8/ HIS March 9, 1954 w. J. KEUPER LAUNDRY LISTING MACHINE 6 Sheets-Sheet 4 Original Filed June 17, 1946 INVENTOR WILLIAM J. KEUPER fa/(Mama Hl ATTORNEY Patented Mar. 9, 1954 LAUNDRY LISTING MACHINE William J. K'euper, Cincinnati, Ohio, assignor to The National Marking Machine Company, Cincinnati, Ohio, a corporation of Ohio Original application June 17, 1946, Serial No. 677,189. Divided and this application Julie 9, 1950, Serial'No. 167,111

8 Claims. 1

My invention relates to improvements in launmy listing machines and has to do, more particularly, with an improved machine for printing a laundry listing bearing the designations of the various classes of articles contained in a laundry bundle, and the number of articles in each class.

In modern laundry practice, it is desirable to provide a machine having a set of operating keys, one for each class of article likely to be found in a bundle of laundry, so that, as an operator goes through the bundle, she may operate the appropriate keys, once for each article of the class that she finds in the group of articles to be laundered. Having completed the setting up of the list by such operation of the required keys, and having placed a blank on the platen of the machine, the operator actuated the machine to print on the blank the name of each class of article found in the bundle and, opposite the name, the number of articles of the class.

In machines of the prior art, it has been entirely possible for the operator to list the entire contents of a bundle into his machine, and then, without thinking, turn the clearing crank and clear it all out of the machine before printing the list. The list of items to be laundered is thereby irretrievably lost and the operator must again go through the bundle and repeat the list= in'g operation of the various articles of laundry contained in the bundle. With the machine hereinafter to be disclosed, this contingency cannot occur because of the provision of an interlock which prevents the machine being cleared until after the list is printed. This interlock is also efiective to prevent the listing of further items in the machine after printing has taken place and before the type Wheels have been reset to zero. The above feature is of particular value today because, due to the present high production and high labor turnover in commercial laundries, machines of this character must be made as foolproof as possible.

Accordingly, one of the objects of my invention is to provide a laundry listing machine in which means is provided for preventing the machine from being cleared until after the list is printed.

Another object of my invention is to provide a laundry listing machine having a resetting shaft, rotation of which restores displaced type wheels to normal positions, a printing shaft, rotation of which prints a list from the type of type wheels at printing position, and an interlock which pre- 2 vents two succeeding resetting operatibn's without an interveningprinting operation.

Another object of my invention is to pibvide a laundry listing machine having an interlock device controlled jointly by the resetting means 'a'nd the printing means for preventing clearing of the machine until after the list is printed, and for preventing further listing of items in the machine after the list has been printed and before the type Wheels have been cleared. o l

A further object of my invention is to provide an improved laundry listing machine having a signallight to indicate that the machine has been cleared properly, preparatory to setting up a new list.

Further objects, and objects relating to details of construction and economies of operaltiomwill appear from the detailed description to follow. In one instance, I have accomplished the objects of my invention by the devices and means described in the following specification. My invention is clearly defined and pointed out in the appended claims. A machine constituting a pro-'- ferred embodiment of my invention is illustrated in the accompanying -clrawings, forming apart of this specification, in which:

Fig. 1 is a viewer my laundry listing machine, in 'front elevation.

Fig. 2 is a viewoi the Illachille'ih left side e1eva= tion, parts of the left side frame and the keyboard frame being broken away, to show certain of the operating parts.

Fig. 3 is a Vertical sectional view through the central portion of the machine.

Fig. 4 is a detail sectional view, taken on the line l4of Fig. 1.

Fig. 5 is a fragmentary, vertical sectional View through the resetting shaft, taken substantially'o'n line 5-5 of Fig. 3.

Fig. 6 is a sectional view, taken on line "6 6 of Fig. 5, a part of the side name being omitted.

Fig. 7 is a fragmentary, sectional 'viw, tar-ea substantially on the line i-|' of Fig. 3-.

Fig. .8 is a view in side elevation of one of the printing arms and its selector member, the-selector member being shown in fun nnes in selecting position, and the printing arms and seieetor member being shown in dotted lines the pose tions to which they are moved 'upo'n operation of the printer shaft.

Fig. 9 is a "fragmentary view left side elevation, corresponding to apart of 'Fig. '2, theribbon spool being removed and the keyboard frame shown, in dotted lines, in the horizontal position it occupies when access to the parts of the machine is desired.

Fig. 10 is a detail, sectional view, taken on the line Ill-l of Fig. 9.

Fig. 11 is a fragmentary view in front elevation, showing the means for adjusting the aligning springs for the feed gears.

Fig. 12 is a view, on an enlarged scale, of the lower portion of a printing arm showing the means for attaching a printing plate thereto.

Fig. 13 is a fragmentary view in front elevation showing the lower portions of several printing arms, the printing plates carried thereby, and the comb for holding the printing arms in spaced relation.

Fig. 14 is a wiring diagram showing the circuit for the signal light.

Fig. 15 is a view of a laundry list printed on this machine, and

Fig. 16 is a detail, sectional view, taken on the line Iii-I6 of Fig. 1, showing the mounting of the ribbon spool.

In the drawings, the same reference numerals refer to the same parts throughout the several views and the sectional views are taken looking in the direction of the arrows at the ends of the section lines.

This application is a division of my copending application, Serial No. 677,189, filed June 17, 1946, and entitled Laundry Listing Machine, now U. S. Patent No. 2,583,486.

In general, the laundry listing machine embodying my invention comprises a plurality of type wheels, selective means for rotatably advancing said wheels step-by-step from normal nonprinting position, a plurality of printing members normally in printing position, one for each of the type wheels, printing mechanism for making an imprint upon a blank from the type of type wheels and printing members at printing position, and automatic means for moving away from printing position the printing members corresponding to type wheels in normal non-printing position. The means for moving printing members away from printing position may be actuated by the printing mechanism. The machine may include a rotatable printer shaft, means for rotating the printer shaft, and means, actuated by rotation of the printer shaft, for moving away from printing position those printing members that correspond to type wheels in normal non-printing position. There may be a cam fixed on the printer shaft which, upon rotation of said shaft, first acts to move away from printing position the printing members that correspond to type wheels in non-printing position and, then, acts on the printing mechanism to make an imprint from the type wheels and the printing members remaining in printing position. The machin may be provided with a plurality of setting keys, one for each type wheel, so arranged that the corresponding type wheel is advanced one step each time its printing key is actuated. The setting keys may be arranged to actuate feed gears, one for each setting key, which feed gears are arranged to drive the corresponding type Wheels. For instance, I may provide a plurality of rotatable toothed type wheels, certain of the teeth of which bear numeral type consecutively arranged, and a feed gear for each type wheel, which meshes therewith and is arranged to be actuated by the corresponding setting key, so as to advance the feed gear one step each time the key is actuated.

My invention comprises a machine in which the printing members are carried by pivoted printing arms, that are acted on by means tending to retain the arms in printing position, devices being provided for automatically moving away from printing position the printing arms that correspond to type wheels in non-printing position. Each printin arm may be provided with a selector member, which remains in selecting position so long as the corresponding type wheel is in normal non-printing position, but moves to non-selecting position when the corresponding type Wheel is displaced from the non-printing position, and automatic means for moving away from printing position the printing arms Whose selector members are in selecting position. The positions of the selector members may be controlled by the corresponding feed gears, as, for instance, by means of a stud on the feed gear engaging a finger of the selector member and holding it in selecting position, so long as the feed gear is in normal position, the movement of the feed gear from normal position permitting the stud to move away from the finger so that the selector member is allowed to move to the non-selecting position. For example, I may provide a rock shaft having a pick-up ledge thereon, so that, when the shaft is rocked the ledge will engage the selector members in selecting position and move them to rock the corresponding printing arms and carry their printing members away from printing position. This rock shaft may be rocked from one position to the other by toggle mechanism, actuated by rotation of the printer shaft, to move the rock shaft from its normal to its selecting position, in which position it is retained by the toggle mechanism until returned when the toggle mechanism is restored to its previous position, upon the first operation of the resetting shaft following such printing operation. This resetting shaft provides means whereby, upon rotation thereof, all the feed gears and type wheels will be restored to their normal positions. The machine may be provided with an interlock of such nature that two successive operations of the resetting shaft cannot be performed without an intervening printing operation. This interlock may take the form of a pawl, carried by the rocker member of the toggle mechanism and cooperating with a notch in a flange fixed to the resetting shaft. When the rocker member is in its normal non-selecting position, and the resetting shaft is in its normal position, this pawl will engage the notch to prevent rotation of the resetting shaft, but the operation of the printing mechanism will move the rocker member away from its normal position, so as to remove the pawl from engagement with said notch and permit the operation of the resetting shaft.

One novel feature of my invention consists in the setting keys that are pivoted to rock in two directions, and which are so connected to the type wheels that a rocking of a key in one direction will advance the corresponding type wheel one step, while the rocking of the key in the other direction will return the type wheel one step. This affords a convenient means for correcting for erroneous depression of the keys. Each setting key is provided with a cam member for actuating the corresponding advance and return mechanism. In the case of the keys of one bank or row, the cam members are integral with the key stems, while, in the case of the remaining banks or rows of keys, the cam members are connected by links to the pivoted key stems. All

the cam members are coaxially arranged on a common shaft, which also constitutes the pivot for the upper row of keys. Each cam member may be interposed between the operating arms of a corresponding pair of bell cranks, each of which bell cranks has a pawl-carrying arm on which a pawl is pivoted, one of these pawls being engageable with the corresponding feed gear to advance it one step, when the corresponding cam member is rocked in one direction, and the other pawl being engageable with the feed gear to return it one step, when the corresponding cam member is rocked in the other direction.

The setting keys may all be mounted in a keyboard frame, which is pivotally mounted on the main frame of the machine, so that it may be swung down to a horizontal position, in which access may be had to the feed gears and type wheels for purposes of adjustment or repair. This keyboard frame may carry the shafts on which the keys are pivoted, and also the shaft on which the bell cranks actuated by these keys are located.

The machine may be provided with a signal light, which is lit by the rotation of the resetting shaft to the end of its forward stroke, so as to show the operator that the resetting operation has been correctly performed. This signal light may be connected in an electric circuit with a normally open switch, which is closed by a part carried by the resetting shaft, when that resetting shaft has been turned to the limit of movement in one direction.

Referring to the numbered parts of the drawings, I have illustrated a laundry listing machine comprising a pair of side frames 23 connected together, at the bottom, by the transverse bars 2! and, near the top center, by the transverse shaft 22, and near the front lower portion of the keyboard, by the transverse shaft 23. A casing 24 is applied to the side frames and covers the back and front of the machine, extending from a point near the rear cross bar 2i to the upper front of the machine, at the upper edge of the keyboard. The keyboard frame 25 is mounted between the front portions of the side frames 20, being pivoted on the transverse shaft 23 carried by said side frames. The keyboard frame 25 has the rearwardly directed flanges 26, at the sides thereof.

Keyboard frame 25, pivoted on the transverse shaft 23, is releasably held in the position shown in Figs. 2 and 3, but may be quickly and easily released so that it may be swung about the shaft 23 to the horizontal position, indicated by dotted lines in Fig. 9, in which position ready access may be had to the interior of the machine for purposes of repair or maintenance. Referring to Fig. 4, a hole 27 is formed in each side flange 26 of the keyboard frame, near the upper end thereof. A bushing 23 is mounted in a hole in each side frame 23 and this bushing protrudes into a notch 33, that is milled out in the adjacent flange 26 of the keyboard frame. A plunger 29, having a pointed end, is slidably mounted in the bushing 28 and a spring 33 is interposed between a shoulder on the plunger 29 and a shoulder 3! formed in the bushing 28, so that the spring tends to project the plunger 23 into the hole 21 of the keyboard frame flange, to lock the keyboard frame in operative position. A knurled head 32 is fast on the outer end of the plunger 29 and the plunger may be withdrawn from locking position, against the pressure of spring 33, by means of said knurled head. When the keyboard frame is swung to the operative position, with the plungers '29 held withdrawn, the protruding ends :0! the bushings 28 engage the walls of the milled out notches 33 and limit the inward movement of the upper end of the keyboard frame. at the same time locating the holes 21 oppositetheends of the plungers 29, which .can then be released and allowed to snap under spring pressure 'into the holes 21 to lock the keyboard frame 25 in place.

Mounted on the keyboard frame 25 are sixty operating keys 34, arranged in six rows of .ten keys each. One of these keys 34 is assigned to each of the classifications of articles likely to be met with in a bundle of laundry. For instance, one of the keys 3% is assigned to shirts, another to socks, one to tablecloths, another to pajama tops, another to pajama pants, one to :bedspreads, another to pillow cases, another to sheets, and so on. It will be noted that these sixty keys 34, arranged in six rows, are in staggered relation to each other, so as to give room for the-operating connections. Each key .34 will bear on the key top a legend indicating the class of article to which it is assigned. The construction of the machine is such that these key tops may be made relatively large, so as to afford room for a legend printed in characters sufficiently large to be readily legible to the operator. Fixed parallel horizontal shafts are provided, one for each row of keys 34, the ends of said shafts being anchored in the side flanges 26 of the keyboard frame. Keys 34 of the upper row have stems 38 pivoted on the upper shaft 35, and the keys 3 1 of the remaining rows have stems 31 pivoted on the shafts 35 provided for those rows of ke Each of the key stems 33 of the upper row of keys has integral therewith a cam extension 39, extending rearwardly from the shaft 35. interspersed between the cam extensions 39, on the upper shaft 35, are fifty cam members 43, one for each of the keys 34 in the remaining rows of keys. Each cam member has a forwardly extending neck 4!, to which the upper end of a link 53 is pivotally connected by a pin 2. The lower end of each link :53 is forked, as at 44, and straddles the stem 31 of the key to which it is assigned, being pivotally connected thereto by a pin 45. The key stems 38 and 31 extend forwardly from the pivot shafts 35 through slots 36 provided in the keyboard frame 25. It will be noted that each of the key stems 38 and 31 may be rocked either clockwise or counterclockwise about its pivot shaft 35. The corresponding cam member 43, or cam extension 39, will be rocked clockwise or counterclockwise about the upper pivot shaft 35, depending upon the direction in which the corresponding key stem is swung.

A shaft is carried by the rearwardly directed flanges 2B of the keyboard frame, extend ing from one of these flanges to the other, and forms the support for the mechanism for advancing and returning the type wheels, as the several keys 3A are rocked in one direction or the other. sixty of these mechanisms are provided, one for each of the keys 34. Each of these mechanisms includes a pair of bell cranks 5| and 52, pivotally mounted on the shaft 53, said bell cranks having the forwardly extending arms 53 and 54, between which the corresponding cam member E3, or cam extension 39, is interposed, as shown in Figs. 2 and 3. A spring has its ends connected to the arms 53 and 54 and tends to rock the upper bell crank 5| clockwise, and the lower bell crank 52 counterclockwise, about shaft 50, so as to hold the arms 53 and 54 in engagement with the cam member 40, or cam extension 39. Bell crank has a pawl-carrying arm, on which a feed pawl 51 is pivoted at 56. Bell crank 52 has a pawl-carrying arm extending downwardly, to which a return pawl is pivotally connected at 58. The ends of spring 60 are connected, one to the pawl 51 and the other to the pawl 59, and this spring tends to rock the pawls toward each other until they engage the stop shoulders 51 and 52' provided on the bell cranks 5| and 52, respectively.

A horizontal resetting shaft 46 is rotatably mounted in the side frames 20 of the machine. Journaled on the resetting shaft 46 there are sixty feed gears 47, one for each of the keys 34. Each feed gear 47 has a laterally projecting stud 48 and another laterally projecting stud 49 (see Figs. 3 and 5). Each feed gear 41 is in line with the corresponding feed pawl 51 and return pawl 59, arranged to be actuated by the key 34 that corresponds to the feed gear, and when the key 34 is rocked clockwise the corresponding cam extension 39, or cam member 40, will likewise be rocked clockwise, the corresponding bell crank 5| will be rocked counterclockwise, and the pawl 51 carried thereby will be caused to engage a tooth of the corresponding feed gear 4? and advance that feed gear one step. However, if a key 34 be rocked counterclockwise about its pivot on shaft 35, the corresponding cam extension 39, or cam member 40, will likewise be rocked counterclockwise, and this will rock the corresponding bell crank 52 clockwise, causing the pawl 59 carried thereby to engage the corresponding feed gear 41 and move that gear one step in the reverse direction, that is, return said gear one step. Thus, if a key has been actuated erroneously, advancing its feed gear 41 one step when it should not be advanced, the error can be corrected by rocking the key 34 counterclockwise to return said feed gear 41 one step.

There is a detent spring 6! for each of the gears 41, engaging the periphery thereof. These detent springs G! are mounted on a transverse shaft 62, the ends of which are mounted in adjusting brackets 63, pivoted at 54 on the side frame members 20. Each bracket has an elongated slot 65 receiving an eccentric portion 68 on an adjusting screw 61 (see Fig. 11). By turning the screw 61 the adjusting bracket 63 is rocked on its pivot 64 to raise or lower the corresponding end of shaft 62. In this way, the detent springs 6i may be adjusted so as to make proper contact with the space between teeth of the gears 41'. These detent springs 6| serve as aligning means for the feed gears 4'1.

Mounted on the shaft 58, which extends transversely of the machine between the side frame members 20, there are sixty type wheels 69, one for each of the keys 34 of the keyboard. Each type wheel meshes with the corresponding feed gear 41. There are forty teeth in the gear 41 and forty teeth in the type wheel 69. These type wheel teeth, beginning with the tooth and running counterclockwise, have type for printing the numerals 1, 2, etc., up to and including 37. The teeth numbered 'H do not have any type thereon and are blank, and, when a type wheel is positioned so that tooth H is at the printing line, no numeral printing will result and the type wheel is in its normal, nonprinting position. The teeth numbered 1 I are also blank, having no type thereon. When one of the keys 34' is operated by rocking it clockwise about its pivot, the corresponding feed pawl 51 will engage and advance the corresponding feed gear 41 one step, which also advances the corresponding type wheel 69 one step. Thus, if the key 34 representing shirts" is depressed, the corresponding type wheel 69 will be moved from the blank or nonprinting position to present the numeral type 1 at the printing line. If that key is depressed a second time, the type wheel will be advanced a second step to present the numeral 2, and so on. If the key is depressed in error, a correction may be effected by rocking the key counterclockwise, which moves the feed gear 41 and the corresponding type wheel 69 one step in the reverse direction, to correct for the error.

Journaled on a transverse shaft 12, which extends between the two side members 20 of the frame, are sixty printing arms 13, one for each of the keys 34. Each printing arm has a rearwardly-extending ear 14, a cam notch '15 near the lower end thereof, and a foot 76. A printing plate 11 (see Figs. 12 and 13), of channel-shaped formation, and having type on the lower surface thereof for printing the name of the class of article to which the corresponding key is assigned, is detachably mounted on the foot 18 of each printing arm. The printing plate has notches 18 in the side walls thereof, which receive a pin 19 on the foot of the printing arm, and there are cam notches 80 at the rear of the printing plate, which are engaged by a spring 81 fastened in a slot 82 in the lower end of the printing arm. This provides means whereby the printing plate can readily be removed from the printing arm.

One end of a spring 89 is connected to the upper end of each printing arm 13, above the pivot shaft 12 thereof, and the other ends of the springs 89 are connected to a spring bar 90 carried by and extending between the side members 20 of the frame. These springs 89 tend to swing the printing arms 13 to printing position, in which the printing plates 11 are in position to print the names of the classes of articles assigned thereto. The printing position of the printing arm 13 is determined by the engagement of the notch 15 with a transverse rod 83, the ends of which are mounted in arms 84, pivoted on the shaft 68 near the side members of the frame. Each arm 84 has an oblong slot 85 formed therein, which receives the eccentric portion 84b of an adjusting screw 84a (Fig. 7) journaled in a boss 86 on the adjacent side member 20 of the frame. By turning this adjusting screw, the arm 84 may be adjusted angularly about shaft 63, so that the corresponding end of rod 83 may be accurately positioned to bring the printing plates T! to the proper printing line. A comb 81 extends forwardly and upwardly from the rod 83 and is provided with slots, one for each of the printing arms 13, in which said arms work. This comb keeps the printing arms properly spaced. A housing 88, formed of sheet metal, is carried by the side members 20 of the frame and extends across the lower front portion of the machine opposite the positions occupied by the lower ends of the printing arms. When these printing arms are moved to non-printing position, as will be described later, they move back within this housing 88.

At the upper end of each printing arm 13, a selector member 91 is pivoted to the ear 14 of the printing arm, by the pin 92. This selector member has a rearwardly extending finger 93, normally lying in the path of the pin 49 on the corresponding feed gear 41. Each selector member 9. 9I also has a forwardly extending finger 9t and an oblong slot 95, concentric with the pin 92 and receiving the shaft I2. A spring 96, mounted in the upper end of each printing arm I3 above the pivot shaft I2, engages the upper edge of the corresponding selector member 9I and tends to rock that selector member clockwise about its pivot pin 92. When a feed gear 41 is displaced from its normal non-printing position, the stud 49 is removed from the finger 93 of the corresponding selector member, and permits the spring 96 to rock that selector member clockwise, so as to move the forwardly-extending finger 96 out of the path of a pick-up ledge 91, attached to a rock shaft 98, which is journaled in the side members 20 of the frame. Two springs me, one at each side of the machine, connected, at their upper ends, to the ends of the pick-up ledge 9"! and, at their lower ends, to pins IIlI carried by the side frame members 20, yieldingly hold the pick-up ledge in its normal non-selecting position, against the stop pins 99 carried by said side frame members 29. When the rock shaft 98 is rocked clockwise, by means to be described hereinafter, against the tension of springs I90, the pickup ledge 91 engages the fingers 99 of all selector members 9| that are in selecting position, that is to say, those selector members which are held in the position, shown in full lines in Fig. 3, by the engagement of the studs 49 on their feed gears 4'? with the fingers 93 of the selector members. In the case of feed gears d! that have been displaced from the normal position, the springs 96 have rocked the selector members 9i clockwise to carry the fingers 9d out of the path of the pick-up ledge 91. When the rock shaft 99 is rocked clockwise, the pickup ledge 97 engages the fingers 94 of the selector members in selecting position, and rocks them counterclockwise. Since the bottom of the slot 95, of a member in selecting position, engages the shaft 72, it acts as a fulcrum and the corresponding printing arm I3 is rocked counterclockwise to remove the printing plate H from printing position.

A shaft I02 is fixed in the side members 25 of the frame and extends transversely of the machine. A pair of platen-operating levers is jour naled on the shaft I632, each lever having an upwardly and rearwardly extending operating arm I93 and a forwardly and downwardly extending platen-carrying arm Hi l. Springs I235, anchored at their rear ends to the side members 23 of the frame and secured at their forward ends to the arms I99, tend to rock the levers, of which arms 593 form a part, counterclockwise and thus tend to counterbalance the weight of the platen and associated parts. A base E95 is carried by the forwardly-extending arms I94 of these two levers, the base having downwardly-extending ears I91, at the ends thereof, which ears are pivoted on pins we carried by the arms I99. A platen I99, which may be of rubber or like resilient material, is carried by the base 96, to which there is also secured a sheet metal platen extension IE9 extending forwardly therefrom. A bar III is adjustably mounted on this extension and serves as a guide or abutment, against which the right-hand edge of the blank or form is placed to position it properly on the platen for printing the numbers and names of the articles in the proper place on the laundry list. Each arm I3 3 of the platen-operating levers has bearings H2, in which adjusting screws I53 are mounted, said adjusting screws bearing against bosses H4 on the bottom of the base I96.

adjustment of the screws H3, this base may be tilted one way or the other about the axis of pins I98, to bring the platen I99 to the proper level to get a good impression. The upper end of each arm I93 is forked and carries a follower roller H5, which engages a cam Ill fast on a shaft H6 journaled in the side members 29 of the frame, and having an operating crank II8 fast thereto, on the left-hand side of the ma-- chine. When the shaft HE is given a revolution counterclockwise by turning the crank H8, the high spots of cams I I1 engage rollers i I5 and rock the platen-operating levers counterclockwise, bringing the blank supported on platen I09 against the inking ribbon, which is interposed between it and the type wheels 69 and printing plates H at printing position, so as to make an imprint on the blank supported on the platen I69. When the high spots of cams III pass out from under the rollers N5, the weight of the platen and its associated parts returns them to the normal position, shown in Fig. 3.

The cams IIi' also act on the follower rollers I Ila of the selecting mechanism for the printing arms, as best shown in Fig. 2. At each side of the machine, there is a toggle mechanism including a rocker member H9, pivoted on a stud I2 carried by the adjacent side member 29 of the frame. This rocker member II9 has a forwardly and upwardly extending arm I2l, from which extends a pin I22. A spring I35 is mounted on the pin I22 and abuts against a shoulder I23 at the junction of the pin I22 and the arm I2I. The other end of spring I35 engages a block I2 5 that is slidable on the pin I22, and which has laterally-extending trunnions I25, received in notches I2 5 in the forked end I2! of an arm 5 28, journaled on the shaft 12 and provided with a cam I29. Each cam 29 is adapted to engage a follower roller I39, carried by an arm I3I fastened on one end of the rock shaft 98, to which the pick-up ledge 97 is fixed. When the parts occupy the position shown in Fig. 2, and the shaft H6 is given a revolution, cams I ll will engage the follower rollers Illa and rock the rocker members I I9 clockwise about the studs I20. This causes the trunnions l25 on the blocks I24, due to their engagement in the notches I26, to rock the arms I28 and cams I29 counterclockwise about the axis of shaft I2. Springs I are compressed until dead center is passed, when they will again expand holding the parts in the moved position, until force is applied to rock the rocker members H9 counterclockwise. The counter-'- clockwise rocking of the cams I29, due to their engagement with the follower rollers I39, will rock shaft 98 clockwise against the tension of springs I99, thus causing the pick-up ledge 9i to engage the fingers 94 of selector members 9I in selecting position and rock the corresponding printing arms I9 to carry them and their printing plates TI away from printing position. It will be apparent, from Fig. 3, that the high spots of cams HI act on the follower rollers II'Ia before they act on the follower rollers M5 and thus, before the printing operation takes place, the rotation of the printer shaft I It will result in automatically moving away from printing position the printing plates that correspond to feed gears 41 and type wheels 69 that have not been displaced from normal non-printing position. These feed gears and type wheels are those that correspond to keys as that have not been actuated since the last resetting operation.

Referring to Figs. 2 and 3, a transversely extending locking rod I32 extends between and is carried by the rocker members H9 and, when these rocker members are swung to the selecting position to actuate the rock shaft 93 and move selected printing arms from printing position, locking rod I32 will be swung into the space between teeth of the gears 41 and lock these gears and the type wheels against movement during the printing operation. Each rocker member I I9 also has a laterally-extending flange I34, which cooperates with certain parts that will be described in connection with the resetting mechanism.

The operator may print as many lists as he desires from a given set-up, but it will be necessary to reset the mechanism to normal before setting up for the printing of a different list, representing the contents of a different bundle. This may be accomplished by rotating the resetting crank I36 at the right-hand side of the machine. Referring to Fig. 5, this crank is carried by a hub I31 fast to a pinion I30, which is journaled on a stud I39 carried by the right-hand side member 20 of the frame. Pinion I38 meshes with a pinion I40 having an equal number of teeth, which has a hub I42 journaled in a bear ing I M carried by the right-hand side frame member 20. The hub I42 is keyed by spline I43 to a member I44, which is fastened by a screw I 45 to a companion member 946 mounted on the end of shaft 46 and fastened thereto by a set screw I41. Thus, rotation of the resetting crank I36 rotates pinion I35 in one direction, and pinion I40 in the opposite direction, which motion of pinion I40 is transmitted through members I44 and I46 to the shaft 46. Referring to Fig. 5, it will be seen that the left-hand end of the resetting shaft 46 is mounted in the lefthand side frame member 20 in substantially the same manner described with reference to the right-hand end of the shaft. A sleeve I65 is journaled in a bearing I M carried by the lefthand frame member 20. A member I 44 is mount ed on the sleeve I65 and fastened thereto by a spline I43. A companion member I46 is secured to member I44 by a screw I45 and member I46 is fastened to the left-hand end of shaft 46 by a set screw I41. Referring to Fig. 5, sixty resetting discs I48, one for each of the gears 41, are mounted on the resetting shaft 46. Each resetting disc is keyed to the shaft 46 by a key I50 (Fig. 3). Each of these resetting discs I40 has a projection I49, which normally lies in front of the stud 49 on the corresponding gear 41. The operator, by means of crank I 36, rotates shaft 46 to the limit of movement in the clockwise direction (Fig. 3), which causes the projection I49 on the resetting discs to engage the rear sides of pins 48 and bring all the pins to the normal position shown in Fig. 3. The operator then reverses the direction of rotation of crank I36 and returns that crank and the resetting discs to the normal positions shown in Fig. 3, in which the projections I49 lie in front of the pins 48.

Each of the members I44 has a flange II thereon, in which a notch I52 is formed. When the resetting shaft 46 and members I44 are in their normal positions (Fig. 3), and the rocker members II 9 are operated by the cams II1 to select the printing plates and take an imprint, the flanges I 34 move into the notches I52 and against the front walls of those notches, as shown in dotted lines in Fig. 2. Just as soon as the resetting shaft 46 is turned in the clockwise direction, at the beginning of the resetting operation, the front walls of notches I52 engage flanges I34 and rock the members II9 counterclockwise, thus moving the toggles to the normal position shown in Fig. 2. This causes the cams I29 to move away from the follower rollers I39, so that springs I00 can rock the shaft 98 and the pick-up ledge 91 to the position shown in Fig. 2, in which position springs I00 maintain the ledge 91 against the stop pins 99. Each member I44 has integral therewith a radiallyextending finger I53, which lies against the stop I54 when the resetting shaft 46 is in normal position. At the end of the first half of the resetting stroke, these fingers lie above the stops I54, which limit the movement of the shaft 46 in that direction, and at the completion of the resetting stroke, when the parts are in the position shown in Fig. 2, the fingers I53 lie beneath the studs I54.

Each flange I5I has a peripheral notch I55, which, as shown in Fig. 2, is located just in front of the notch I52. A pawl I56 is carried by each rocker member II9, being pivoted on the pin I20, and each of these pawls is held against a stop pin I51 by a spring I58 connected, at one end, to the pawl I56 and, at the other end, to the corresponding rocker member II9. It will be seen that, with the parts in the position indicated in Fig. 2, the engagement of the pawls I56 in the notches I55 prevents the rotation of the members I44 and the resetting shaft 46 clockwise, as is required for the initiation of a resetting operation. The parts are shown in Fig. 2 in the position they occupy at the end of a resetting operation and, because of the coaction of the pawls I56 with the notches I55, a second resetting operation cannot be performed without an intervening printing operation. When the printer shaft H6 is rotated by means of the crank II8, the rocker members II9 will be rocked clockwise and will remain in the position to which they are rocked until the next resetting operation. This movement of the rocker members II9 clockwise carries the pawls I56 out of the notches I55, so that the resetting shaft 46 may be rotated clockwise in a resetting operation. At the beginning of this resetting operation the rocker members II9 will be rocked counterclockwise to the position shown in Fig. 2, and this causes the pawls I56 to engage the peripheries of the flanges I5I, on which they ride until the close of the resetting operation when springs I58 cause the pawls I56 to snap into the notches I55 and thus lock the resetting shaft 46 against clockwise movement until the pawls I56 are removed in a subsequent printing operation.

The manner in' which the resetting shaft 46 is mounted in the side members 20 of the frame is shown in Fig. 5. Shaft 46 is provided, at each end thereof, with an axially-extending bore I59. the inner portion of which is of reduced diameter forming a shoulder I60. A portion of the bore I59 is internally threaded, as indicated at I6I. A stud I62 extends through the hub I42 of gear I40, at the right side of the machine, and a similar stud I62 extends through the sleeve I65 at the left side of the machine. Each of these studs has an externally-threaded portion I63, screwing into the internally-threaded portion I6I of the corresponding bore I59, and each stud also has a pilot portion I64, which extends into the portion of the bore I59 of reduced diameter. This forms a very convenient means for assembling and disassembling the resetting shaft 46,

with the gears 41 and resetting discs I48 mounted. thereon. By removing the studs I62- and the screws M5, the entire unit, including members I46, may be quickly and easily removed from the machine and this unit may be conveniently replaced in the machine and mounted therein by replacing the screws I 45 and the studs I62.

A similar arrangement is used for mounting the type wheel shaft 68, as shown in Fig. 7. The side frame member 29 has a boss I55 provided with a bore therein, through which stud I69 extends. Shaft 68 has an axially-extending bore I.6.'I= having an inner portion of reduced diameter forming a shoulder I68. Stud I69 is externally threaded at I19 to screw into an internallythreaded portion of bore I61, and stud I69 has a pilot portion IlI of reduced diameter fitting in the portion of the bore I61 of smaller diameter; The other end of shaft 68 is mounted in the samev manner.

Referring to Fig. 2, hubs IIZ! are journaled on studs I13, carried by the side members 29 of the frame in line with the axis of shaft I02. The legs I Id of a bail Ilti, which extends across the platen extension HO, are fixed in the hubs I'IZ. Thisv bail may be made of a translucent plastic material having marks thereon to permit the operator to align the form properly on the platen I99 and platen extension H9. Springs I16 are connected, at their upper ends, to the hubs I72 and, at their lower ends, to pins I16 on the side frame members it, and tend to rock the bail I75 so as to. carry it against the form mounted on the platen.

It is desirable to provide a signal to indicate to the operator that a complete stroke of the resetting crank I36 has been given in one direction, before reversing the movement of the crank, and also for the purpose of indicating to the operator if the movement of the operating crank has not been reversed to restore the parts to normal position. For this purpose an electric lamp Il -I (Fig. l) is provided on the right-hand side frame member 29, near the lower front corner of the machine, Referring to Fig. 14, the electric lamp Ill has terminals I18 and I19, one of which is connected a lead I89 to one side of the power line. The other terminal is connected by a lead I81 to one terminal I52 of a normallyopen' micrcswitch I83, the other terminal I 84- of which is connected by the lead E85 to the other side of the power line. It is necessary to close the normally-open microswitch I83 to light the lamp I'I'l'. Referring to Fig. 6, the microswitch 1 83 has an operating button 595 and, at the completion of the forward portion of the resetting stroke, the finger I53 will lie above the stud I54 and contact the operating button I86 to close the microswitch. If the operator completes the forward stroke to the limit of movement in one direction, the microswitch will be closedand the lamp lit, but, if he. fails to complete. the forward stroke, the light will not come on and. he will know that he. has to complete the stroke. Just as' soon as finger l53 is moved away from stud I54, at the beginning of the return stroke of the resetting crank 535, the microswitch I83 will open automatically and the light will go off. The microswitch I83 is pivoted on a stud I81" carried by the right-hand side frame member 29. A plate I88 is fastened to the side of the micro switch and provided with a slot I89, in. which the eccentric portion I99 of. an adjusting screw plays: This adjusting screw is mounted in the adjacent side frame member 29, with its eccens 14 tric portion in this; slot. By turning the; screw the microswitch can: be tilted slightly on the pivot. I283, to adjustthe contact betweentheoperating button I86 and the end of finger I53.

Fig; 15 of the drawings is a view of a typical laundry list printed on this machine. The machine prints on the blank, placed on the platen H19 and the platen extension IIU, with itsri'ghthand edge resting against the bar III, the'names of. the various classes of articles in the bundle and: to be included in the list, as indicated at F; from the printing plates TI that are atprinting position at the time of the printing; operation. The machine also prints on the blank, as indicated at G, opposite each name, the number of articles of that classification contained'in the bundle and included in the list, this printing being made from the type wheels 69. The machine is also arranged' to print, at both the top and the bottom of the list, the lot number. indicated at A, the month, day and year of the date, as indicated at B, C and D, and the operators number, as indicated at E. In order to print the lot number A, the month,. day and year, 13,. C', and. D, and the operators number E, at both the top and bottom of the laundry'list, as shown in Fig. 15,. two type wheel assemblies are provided, one on the lower front corner of each side frame member 29. Referring to Fig. 9, the side frame member 29 has a horizontal surface I9I formed therein, and a vertical surface I92 at right angles thereto, and the side frame member then continues horizontally toward the rear in the surface. I93. A finished surface I94 and a boss I95 are provided on the side frame member for the attachment of parts of this type assembly; said boss being provided with a horizontal keyway. The. side frame member is also provided with a laterally extending flange I96. A bearing member I91 is secured to the surface I94 and" boss i955 by screws I98, and this bearing member has a; bearing I99; in which fits the'pilot portion 2'0I', of reduced diameter, of a shaft 299, on which the type wheels 294 are assembled. Shaft 299 has a collar 2920f large diameter, adjacent the outer end thereof, and a forward portion 293, of smaller diameter. A series of type wheels 294 are rotatably mounted on the shaft 299, the rearmost of these type wheels engaging a collar 205 pinned to the shaft. The type wheels are arranged in pairs and spacing collars 296 are interposed between the pairs. The foremost type wheel abuts against the collar 292 on shaft 299. At each type wheel position, the shaft 299 is provided. with a radial. socket 29'? (Fig. 7), in which works a ball 299. pressed outwardly by a spring 209, and each type wheel 29 1 has a series of internal notches 2H3, one for each type position, which notches are adapted to be engaged by the ball 208 to yieldingly hold the type wheel in alignment in an adjusted position. Each type wheel has on its periphery ten type, for printing the numerals l to 9, inclusive, and 0, an eleventh. type, which may be reserved for printing aspecial mark, and a blank non-printing position, having no type on its periphery at that point. Each type wheel, therefore has twelve positions and there are twelve of the internal notches 2 If].

A rod 2| I, which serves as a ribbon guide, has its rear end mounted in the socket 2I'2 in the bearing member I97, and its forward end is mounted in a hole 2I3- in the corner of the plate 21:4, which also fits onthe reduced portion 203 of shaft; 299. A pin M15, mounted inv the; puntlon. [:921 of the side frame member 29 extends forwardly through a hole 2|6 in the plate 214, and has a reduced neck portion 211. A knob 2l8 is mounted on the forward end of shaft 200 and held thereon by nut 219 (Fig. 1). The hub 220 of this knob 2l8 has flat sides 22!, which fit an irregular opening 222 in a hook member 223 having a notch 224 concentric with the axis of shaft 200, and which may be swung to engage the reduced portion 2l1 of pin 2| 5, as shown in Fig. 10. Plate U4 is held in predetermined position with reference to shaft 200 by means of a pin 225, carried by said plate 2M and extending into a groove 226 in the side of the collar 202 on shaft 200. By swinging the hook 223 counterclockwise, the shaft 290 and the type wheel assembly carried thereby may be quickly and easily removed from the machine. The operator may adjust each of the type wheels individually to position to print the desired lot numher, date and operator number. Having thus positioned the type wheels, the entire assembly can be easily returned to place and locked in position by swinging the hook 223 clockwise to the position shown in Fig. 10.

Referring to Fig. 2, the member I91 has a laterally-extending ear 221 provided with a socket 229, in which the rear end of shaft 228 is seated. This is the shaft on which the ribbon spool is mounted and the shaft is fastened in place in socket 229 by pin 23%] (Fig. 16). Journaled on shaft 228 in front of member I91 is the hub 23| of a bell crank lever having a pawl arm 232 and a laterally-extending operating arm 233 (Fig. '7). Journaled on the shaft 228 (Fig. 16) in front of this hub is a ratchet wheel 234 integral with the rear flange 235. The ribbon spool 236 is journaled on shaft 228 and provided with slots 231 which receive pins 238 extending forwardly from flange 235. A flange 239 is mounted on shaft 228 in engagement with the forward end of ribbon spool 236 and this front flange has an integral knob portion 240, with a knurled periphery. This knob portion has a countersunk recess 24L The knurled head 242 of a screw 243, which is screwed into an internally-threaded socket in the end of shaft 228, has a flange engaging in the outer portion of the countersunk recess 24!, and a spring 244 is interposed between the bottom of that recess and head 242, being fixed to the latter so as to be removable with the head and the screw. This spring exerts a braking pressure to prevent too free turning of the spool on the shaft. The forward end of the spool is also provided with slots 231, like those at the rear end, and rearwardly-extending pins 233 are provided on flange 239 and engage in said slots. By turning the flange 239 by the knurled knob 24!], the tension on the ribbon may be adjusted manually. To remove the ribbon spool, the screw 243 will be removed by means of the head 242 and the flange will then come off the shaft 228, permitting one to easily remove the ribbon spool. One of these ribbon spools will be mounted in this way on each of the members I91 attached to the side members 20 of the machine frame.

The pawl arm 232 has a housing 245, in which a pawl 246 is slidable, said pawl being in position to engage the ratchet wheel 234. The upper portion of the pawl is reduced and extends through the top of the housing 245, a spring (not shown) being interposed between a shoulder on the pawl and the upper end of a recess in the housing and tending to project the pawl toward the ratchet wheel. The reduced upper end of the pawl has a cam 249, which bears on the upper end of housing 245, pivoted thereto by pin 250, said cam having an operating handle 25!. By turning the handle 25! counterclockwise (Fig. 2) cam 249 will bear on the upper end of housing 245 and withdraw pawl 246 from engagement with the teeth of the ratchet wheel 234. The end of operating arm 233 is pivotally connected to the upper end of a link 253, the lower end of which is pivotally connected at 254 to an ear 255 on the arm #94 of the platen-operating lever at the corresponding side of the machine.

A similar ribbon spool mounting and ratchet operating mechanism will be provided on each of the two side frame members 25 of the machine. The direction of ribbon feed may be reversed by moving pawl 246, at one side of the machine, to inoperative position and moving the corresponding pawl, at the other side of the machine, to operative position. Referring to Fig. 1, the inking ribbon passes from the ribbon spool at one side of the machine, beneath the ribbon guide rod 2! l at that side of the machine, and thence horizontally to the other ribbon guide and ribbon spool, passing immediately beneath the sets of type wheels for printing the lot number, date and operators number and beneath the sets of type wheels 69 and printing plates 11 for printing the number of articles in a class and the names of the classes. Of course, the inking ribbon passes between these type wheels and the blank supported on the platen I69.

The operation of the improved laundry listing machine embodying my invention shoud be quite apparent from the preceding description, but will be explained briefly at this point. It is assumed that the parts are in normal position as shown in Fig. 3, having been brought to that position by a preceding resetting operation. The operator places a blank upon the platen I09 and the platen extension HQ, with the right-hand edge of the blank in engagement with bar i I Bail I15 may be lifted, against the tension of springs I16, to permit the locating of the blank on the platen and, then, the bail is released and tends to hold the blank in position. The operator now goes through the bundle of laundry to be listed and, each time he finds in that bundle an article of a certain classification, he actuates clockwise (Fig. 3) the key 34 corresponding to that classiflcation. For each such actuation of a key 34, the corresponding feed gear 41 will be moved counterclockwise one step from normal, and the corresponding type wheel 69 will be moved one step from normal position in a clockwise direction, with the result that, when the operator has gone through the bundle and completed the setting up of the listing machine to print the list, the type wheels 69, corresponding to the keys 34 that have been actuated, will be in position to print the number of articles of each of said classifications found in the bundle. Whenever a feed gear 41 is displaced from the normal position, shown in Fig. 3, the movement of the stud 49 away from the finger Q3 of the corresponding selector member 9| will permit the spring 96 to rock that selector member to non-selecting position, shown in dotted lines in Fig. 3. Consequently, at the end of the settingup operation, those selector members 9! that correspond to keys that have not been actuated in said operation, will b in selecting position, and the selector members 9! corresponding to keys that have been actuated in the setting up operation will be in non-selecting position.

At the end of the resetting operation and during the setting-up operation, the printing arms 73 and the printing plates 11 carried thereby remain in the normal printing position, being yieldingly held in that position by the springs 89. To effect a printing on the list supported by the platen 559, the operator gives a complete revolution counterclockwise to printer shaft H6 by means of the crank H8. The first effect of this rotation of shaft H6 is to rock the rocker members H9 clockwise about the studs 120. Through the toggle link connections this rocks the cam members I29 counterclockwise and these cam members, acting on the follower rollers I33, rock the shaft 93 clockwise, so that the pickup ledge 97 engages the fingers 9d of those selector members in selecting position and, rocking them about the shaft I2 as a fulcrum, rocks the printing arms E3, corresponding to the selector members BI in selecting position, out of printing position against the tension of springs 85:, thu carrying the printing plates 'I'i on-said arms I3 away from printing position, and leaving at printing position only those printing plates 'F'i that are carried by arms 13, which correspond to selector members SI that were in non-selecting position. In other words, the first effect of the rotation of shaft H8 is to move away from printing position those printing members If that correspond to keys at that were not actuated during the preceding setting-up operation, leaving at printing position the printing members i! that correspond to keys actuated during such operation. As the shaft its continues to operate, the platen-operating levers comprising the arms I04 and H13 are rocked counterclockwise so that the platen It?) carries the blank placed thereon against the type of type wheels 59 at the printing line, and against the printing plates I? at printing position, so as to print of the blank the numbers of articles and names of the classes of articles found in the bundle listed. At the same time, the blank is carri d against the type of type wheels 204 to print thereon the lot number, the date and the operators number.

If the operator actuates a key 34 erroneously, thus advancing a feed gear 41 and a type wheel 69 when they should not be advanced, this may be corrected for by actuating the key 34 counterclockwise, which will return the feed gear 41 and the type Wheel 69 one step. If this one-step return or correction movement of feed gear 41 brings it to normal position, the stud 49 thereon will engage the finger 93 of the corresponding selector member 9|, and return that selector member to selecting position against the pressure of its spring 96.

The operator may print as many lists as desired from the same set-up, placing the blanks, one after the other, upon the platen I09 and rotating the printer shaft H6 once for each impression. The selected printing plates 11 remain away from printing position, due to the character of the toggle linkages between the rocker members HQ and the cam arms I29, which hold the pick-up ledge 91 in the selecting position from the time it is moved to that position by rotation of the shaft H6 until the next resetting operation. When the operator desires to set up for printing a new laundry list, she must first perform a resetting operation by rotating the shaft 223 (Fig. 3) first closckwise and then counterclockwise, by means of the resetting crank I36. As has been described above, this causes the fingers I49 on the resetting discs I48 to engage the studs 48 of feed gears 41 that have been displaced from normal position, and return those feed gears to normal position, after which the resetting discs are rotated counterclockwise to the position shown in Fig. 3. The first movement of the resetting shaft 46 clockwise causes the front walls of the notches I52 to engage the flanges I34 of the rocker members H9, and rock said members counterclockwise to the normal position shown in Fig. 2, thus restoring the toggle linkages and the cam arms I29 to the normal positions and permitting springs I00 to return the pick-up ledge to its normal position. Thereupon, all printing arms i3 and printing plates 11 return to their normal printing positions. When the operator has turned shaft 46 to the full extent in the clockwise direction, during the forward part of the resetting stroke, the signal lamp I'i'I lights up to tell the operator that he has completed the resetting stroke in one direction. If he fails to turn the resetting crank I36 in the other direction, to return the parts to normal position, the lamp I'll will remain lighted, indicating that the machine has not been operated correctly to effect resetting. As has been described already, the notches I55 and the pawls I56 form an interlock that prevents two successive resetting operations without an intervening printing operation.

One advantage of the improved laundry listing machine shown herein is that, because of the use of the intermediate feed gears 41, which also serve the purpose of feed ratchet wheels, I can use much larger type for printing the number of articles and the names of the articles, and thus provide a machine that will print a more legible laundry list. Another advantage of the machine is that the construction is such that a larger keyboard may be provided, having larger keys with indicators thereon that are more easily read. The machine is of simple construction and assembly and the hinged keyboard construction is one which makes for easier maintenance and inspection, since the keyboard may be swung down to a horizontal position to permit access to the interior of the machine. Another advantage of this machine is the pivoted key construction, by means of which actuation of a key, in one direction, feeds the corresponding type a wheel and actuation, in the other direction, reverses the direction of movement of the type wheel to correct for an erroneous operation. This correction is effective even though the corresponding selector member has been moved to position to select a printing member for movement away from printing position. Thus, a full correction of the setup can be very easily made. The printing impression is not dependent upon the amount of pressure applied by the operator and is uniform, due to the fact that a full revolution of the printing cams forces the platen against the type. The machine also provides means for printing the lot number, the date and the operator's numoer at both the top and the bottom of the list. The type wheel assemblies for printing this data can be very quickly and easily removed and set to print the desired numbers. A simple and convenient ribbon spool mounting, and means for reversing the direction of ribbon feed, are also provided.

I am aware that the laundry listing machine shown herein may be varied considerably without departing from the spirit of my invention and, therefore, I claim my invention broadly, as indicated by the appended claims. I

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent, is:

l, A laundry listing machine comprising the combination of a plurality of rotatable type wheels; means for selectively advancing said type wheels step-by-step from normal position; means common to all of said type wheels for simultaneously restoring all of the displaced type wheels to their normal positions; printing means for making an imprint from said type wheels upon a record sheet; and means to prevent said restoring means from being operated until after said printing means has been operated, including means, rendered effective by an operation of said restoring means, for preventing successive operations thereof, and means, actuated by operation of said printing means, for rendering said preventing means ineffective.

2 A laundry listing machine comprising the combination of a plurality of rotatable type wheels; means for selectively advancing said type wheels step-by-step from normal position; a resetting shaft; means for rotating said resetting shaft to restore displaced type wheels to normal position; a printer shaft; means for rotating said printer shaft; printing means operated by rota tion of said printer shaft for making an im print upon a record sheet from said type wheels; and means for preventing rotation of said re- Setting shaft to restore any displaced type Wheels to normal until after said printing means has been operated, including a loci: for preventing successive operations of said resetting shaft, means actuated by rotation of said resetting Shaft for moving said lock to effective position to. prevent a succeeding operation of said resetting shaft, and means, actuated by rotation of said printer shaft, for rendering said loci: ineffective.

3,. A laundry listing machine comprising the combination of a plurality of rotatable type wheels; means for selectively advancing said type wheels step-by-step from normal position; a resetting shaft; means for rotating said resetting shaft to restore displaced type wheels to normal position; a printer shaft; means for rotating said printer shaft; printing means operated by rotation of said printer shaft for making an imprint upon a record sheet from said type wheels; a flange fixed to said resetting shaft and having a locking notch therein; a rocker member movable to and from looking position; a locking pawl carried by said rocker member and engaging said notch when the resetting shaft is in normal position and the rocker member is in looking position, said pawl cooperating with said notch to prevent rotation of said resetting shaft; means, actuated by rotation of said printer shaft, to move said rocker member from looking position; and means, actuated by rotation of said resetting shaft, to move said rocker member to locking position.

4. A laundry listing machine comprising a combination of a plurality of adjustable type members; means for selectively advancing said type member step-by-step from normal position; restoring means common to all of said type members for simultaneously returning all of the displaced type. members to their normal positions; printing means operable to take an impression from said type members upon a sheet of record material; and means to prevent said restoring means from being operated until after said printing means has been operated, including means jointly controlled by said restoring means and said printing means for preventing two successive operations of said restoring means without an intervening operation of said printing means.

5. A laundry listing machine comprising the combination of a plurality of adjustable type wheels; means for selectively advancing said wheels step-by-step from normal position; means for restoring to normal position such type wheels as may be displaced therefrom; printing means for taking an impression from said type wheels upon a sheet of record material; means, including a rocker settable to either of two positions, for preventing successive operations of said restoring means and for locking said type wheels against rotation; means actuated by said restoring means for setting said rocker to one of said positions in which succeeding operations of said restoring means are prevented; and means actuated by said printing means for setting said rocker to the other of said positions in which said restoring means is released for operation and said type wheels are locked against rotation.

6. A laundry listing machine comprising the combination of a plurality of adjustable type Wheels; means for selectively advancing said type wheels step-by-step from normal position; a resetting shaft; means for rocking said resetting shaft to restore displaced type wheels to normal position; a printer shaft; means for rotating said printer shaft; printing means operated by rotation of said printer shaft for taking an impression from said type wheels upon a sheet of record material; a locking device, including a rocker settable to either of two positions, for preventing successive operations of said resetting shaft and for locking said type wheels against rotation; means actuated by said resetting shaft for setting said rocker to one of said positions in which said resetting shaft is locked against movement at the end of a resetting operation; and means actuated by said printer shaft for setting said rocker to the other of said positions in which said resetting shaft is released for operation and said type wheels are locked against rotation.

'7. A laundry listing machine comprising the combination of a plurality of rotatable type wheels; means for selectively advancing said type wheels step-by-step from normal position; a resetting shaft; means for rotating said resetting shaft to restore displaced type wheels to normal position; a printer shaft; means for rotating said printer shaft; a printing means operated by rotation of said printer shaft for taking an impression from said type wheels upon a sheet of record material; a flange fixed to said resetting shaft and having a l0cking notch therein; a rocker movable to either of two positions; a locking pawl carried by said rocker and engageable with said notch to prevent rotation of said resetting shaft when the latter is in normal position and said rocker is in one of said positions; a locking rod carried by said rocker and engaging said type Wheel advancing means to lock said type wheels against rotation when said rocker is in the other of said positions; means actuated by said printer shaft for moving said rocker from said one position to said other position so as to. lock said type wheels against rotation; and means actuated by said resettin shaft for moving said rocker from said other position to said one position so as to prevent suceessive operations of said resetting shaft.

8. The laundry listing machine of claim 4 in which said preventing means includes a rocker settable to one position upon operation of said restoring means and to another position upon operation of said printing means.

WILLIAM J. KEUPER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date Lang Sept. 7, 1920 Bull Apr. 7, 1931 Carlson Mar. 19, 1935 Roemer Nov. 3, 1936 Poole Sept. 15, 1942 Keuper Sept. 20, 1949 

